HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$132+ Cheap flights from Sky Harbor Intl (PHX) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOS
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sky Harbor Intl to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Boston Logan Intl are usually found in January or February, booked 42 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 13, 2025.

Round-trip from

$238
(Kiwi.com)

One-way from

$132
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$345

Good round-trip deal

$285 or less

Good one-way deal

$160 or less
From Phoenix Sky Harbor Intl to Boston Logan Intl
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Boston Logan Intl.
Search Deals

Find flight deals from Sky Harbor Intl to Boston

Cheapest flights from Sky Harbor Intl to Boston
Explore the most affordable flight options available from Sky Harbor Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:14 pmPHX - BOS
1 stop8h 41mSpirit Airlines
Mon 10/276:20 amBOS - PHX
1 stop18h 44mSpirit Airlines
Deal found 8/11$238
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:35 pmPHX - BOS
Nonstop5h 06mDelta
Sat 9/135:40 pmBOS - PHX
Nonstop5h 33mDelta
Deal found 8/12$239
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:45 amPHX - BOS
1 stop13h 08mMultiple Airlines
Sun 11/25:20 amBOS - PHX
1 stop11h 53mMultiple Airlines
Deal found 8/11$240
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:27 pmPHX - BOS
2 stops25h 35mSpirit Airlines
Mon 9/155:50 amBOS - PHX
1 stop9h 33mSpirit Airlines
Deal found 8/11$241
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:54 pmPHX - BOS
Nonstop5h 01mDelta
Wed 9/171:05 pmBOS - PHX
1 stop7h 36mDelta
Deal found 8/12$242
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:05 amPHX - BOS
1 stop9h 20mDelta
Sat 9/68:10 amBOS - PHX
1 stop7h 26mDelta
Deal found 8/12$243
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:01 pmPHX - BOS
1 stop8h 56mSpirit Airlines
Sun 9/286:00 amBOS - PHX
2 stops33h 23mSpirit Airlines
Deal found 8/13$244
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:59 pmPHX - BOS
Nonstop4h 55mAmerican Airlines
Tue 9/306:15 amBOS - PHX
Nonstop5h 45mAmerican Airlines
Deal found 8/11$245
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/71:27 pmPHX - BOS
1 stop6h 20mMultiple Airlines
Sat 10/48:01 amBOS - PHX
1 stop10h 16mMultiple Airlines
Deal found 8/11$246
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/72:47 pmPHX - BOS
2 stops20h 01mMultiple Airlines
Thu 9/115:50 amBOS - PHX
1 stop19h 26mMultiple Airlines
Deal found 8/11$247
This JetBlue deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:20 pmPHX - BOS
Nonstop4h 41mJetBlue
Sun 11/95:00 pmBOS - PHX
Nonstop6h 01mJetBlue
Deal found 8/11$248
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:44 pmPHX - BOS
1 stop6h 51mDelta
Thu 9/256:50 pmBOS - PHX
Nonstop5h 34mDelta
Deal found 8/12$249

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Boston that are best for you.

Fly from

Sky Harbor Intl

Fly to

Boston

Route

Depart

Return

Price

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 10/22

6:00 am-5:43 pm

1 stop8h 43m

Boston Logan Intl

Wed 10/29

4:24 pm-10:16 pm

1 stop8h 52m

$238

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Tue 10/28

5:10 am-6:00 pm

1 stop9h 50m

Boston Logan Intl

Tue 11/4

6:45 am-2:10 pm

2 stops9h 25m

$238

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Tue 10/21

6:00 am-5:43 pm

1 stop8h 43m

Boston Logan Intl

Wed 10/29

4:24 pm-10:16 pm

1 stop8h 52m

$238

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Mon 9/15

10:07 pm-6:01 am

Nonstop4h 54m

Boston Logan Intl

Sat 9/20

6:15 am-9:00 am

Nonstop5h 45m

$239

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Mon 10/20

12:40 am-10:48 am

1 stop7h 08m

Boston Logan Intl

Sat 10/25

6:15 am-12:15 pm

1 stop9h 00m

$239

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Thu 10/9

10:55 pm-6:46 am

Nonstop4h 51m

Boston Logan Intl

Sat 10/11

7:20 pm-10:00 pm

Nonstop5h 40m

$239

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Thu 9/4

10:35 pm-6:41 am

Nonstop5h 06m

Boston Logan Intl

Sat 9/13

5:40 pm-8:13 pm

Nonstop5h 33m

$239

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Mon 10/20

10:55 pm-6:46 am

Nonstop4h 51m

Boston Logan Intl

Mon 10/27

5:00 pm-8:01 pm

Nonstop6h 01m

$239

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Mon 9/15

10:54 pm-6:55 am

Nonstop5h 01m

Boston Logan Intl

Sat 9/20

5:40 pm-8:13 pm

Nonstop5h 33m

$239

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sat 9/6

10:35 pm-6:40 am

Nonstop5h 05m

Boston Logan Intl

Sat 9/13

5:40 pm-8:13 pm

Nonstop5h 33m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Sky Harbor Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sky Harbor Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Boston

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Boston. Price data was last updated on August 8, 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix Sky Harbor Intl Airport to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Boston?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boston (average of $218). Flying from Phoenix Sky Harbor Intl Airport to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to BOS?

Find hourly flight availability from Sky Harbor Intl to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 33% on flights from Phoenix Sky Harbor Intl Airport to Boston by exploring options for tickets in the evening.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Boston?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Boston. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Boston flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Phoenix Sky Harbor Intl Airport to Boston

Explore weekly flight availability from Sky Harbor Intl to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 13, 2025.

The most flights from PHX to BOS are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

What’s the top layover airport for flights from Phoenix Sky Harbor Intl Airport to Boston?

Share of 1-stop round-trip flights from Phoenix Sky Harbor Intl Airport to Boston chosen by Cheapflights users in the past 12 months, using the same layover each way.

Dallas (DFW) – chosen by Cheapflights users on 33% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Boston on Cheapflights.

What’s the cheapest layover airport for flights from Phoenix Sky Harbor Intl Airport to Boston?

Average round-trip fare for 1-stop flights from Phoenix Sky Harbor Intl Airport to Boston, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $190.

What’s the fastest layover option from Phoenix Sky Harbor Intl Airport to Boston?

Shortest average travel time for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Boston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 7h 53m.

Which airport typically offers the quickest layover for flights from Phoenix Sky Harbor Intl Airport to Boston?

Average layover duration for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Boston, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dallas (DFW) offer the fastest connection on this route, with an average layover time of 4h 04m.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated August 13, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Phoenix Sky Harbor Intl Airport to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
JetBlue
7.2
Good
2,915 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boston from Phoenix Sky Harbor Intl?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Boston from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Logan Intl (BOS) should be relatively easy as there are 6 daily inbound flights from Phoenix Sky Harbor Intl from 8 different airlines.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Boston round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Boston, with prices starting at $238. Another option worth looking into is Delta, starting at $239 round trip. Spirit Airlines is currently priced 26% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Boston?

    The top 3 most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Boston are KLM (85%), Qatar Airways (83%) and Delta (80%).

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Boston?

    Looking at all options, your cheapest flight can be booked for $130. While the most popular route (Phoenix Sky Harbor Intl - Boston Logan Intl) can be booked for $169 on average our data indicates $573 when flying from Phoenix Sky Harbor Intl Airport to Boston.

  • Can I find deals for flights from Sky Harbor Intl to Boston that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Boston.

  • Can I find deals for business class flights from Sky Harbor Intl to Boston?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boston (average of $218). Flying from Phoenix Sky Harbor Intl Airport to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Watertown
Hampton Beach
Waltham
Seabrook
Lowell
Lincoln
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Swansea
Saugus
Burlington
Braintree

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sky Harbor Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Hartford flights
Sky Harbor Intl to Albany flights
Sky Harbor Intl to West Tisbury flights
Sky Harbor Intl to Worcester flights
Sky Harbor Intl to Nantucket flights

Top 8 airlines flying from Sky Harbor Intl to Boston

Discover the top 8 airlines that operate flights from Sky Harbor Intl to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$181FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$106Average$197FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$158Average$341FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$163Average$286FlexibilityNo cancel feeOn-time62%
DeltaCheapest$174Average$304FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$228Average$265FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$237Average$379FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$250Average$352FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.